write down the chemical formular for the following compounds
1.Sodium flouride
2.Berillium chloride
3.Pottasium iodide
4.Rubidium bromide
5.Magnesium sulphide
NaCl
BeF2
KI
What's the problem here? What do you not understand about this? The periodic table almost TELLS you what to write.
To determine the chemical formula for a compound, we need to identify the elements present and their respective charges. Here's how to determine the chemical formula for each compound you listed:
1. Sodium fluoride:
- Sodium has a charge of +1, and fluoride has a charge of -1.
- To balance the charges, we need one sodium ion (Na+) and one fluoride ion (F-).
- Therefore, the chemical formula for sodium fluoride is NaF.
2. Beryllium chloride:
- Beryllium has a charge of +2, and chloride has a charge of -1.
- To balance the charges, we need two chloride ions to counteract the +2 charge of beryllium.
- Therefore, the chemical formula for beryllium chloride is BeCl2.
3. Potassium iodide:
- Potassium has a charge of +1, and iodide has a charge of -1.
- To balance the charges, we need one potassium ion and one iodide ion.
- Therefore, the chemical formula for potassium iodide is KI.
4. Rubidium bromide:
- Rubidium has a charge of +1, and bromide has a charge of -1.
- To balance the charges, we need one rubidium ion and one bromide ion.
- Therefore, the chemical formula for rubidium bromide is RbBr.
5. Magnesium sulphide:
- Magnesium has a charge of +2, and sulphide has a charge of -2.
- To balance the charges, we need one magnesium ion and one sulphide ion.
- Therefore, the chemical formula for magnesium sulphide is MgS.
Remember, it is important to consider the charges of the elements to determine the correct chemical formula for a compound.